Reset tv to default settings. Download the “SmartThings” app and follow the prompts.
I had everything done in 10 minutes.
I solved by creating a new Samsung Account with a different email address and then signed back into TV with new Samsung Account-- it finally passed the Terms and Conditions.
Smart things did n't work for me..but changes the DNS did. I live in Canada, my Samsung is from U.S.. When I changed DNS to 22.214.171.124 (google) it worked. Doesn't have to be this DNS but clearly there is a restriction based on country.